diff --git a/dist/win/spek.wxs.in b/dist/win/spek.wxs.in
index 40ce0b3..9ff824e 100644
--- a/dist/win/spek.wxs.in
+++ b/dist/win/spek.wxs.in
@@ -16,8 +16,8 @@
     <WixVariable Id="WixUIBannerBmp" Value="banner.bmp" />
     <WixVariable Id="WixUIDialogBmp" Value="dialog.bmp" />
     <Upgrade Id="$(var.UpgradeCode)">
-      <UpgradeVersion Minimum="$(var.ProductVersion)" OnlyDetect="yes" Property="NEWVERSIONDETECTED" />
-      <UpgradeVersion Minimum="0.0.0" IncludeMinimum="yes" Maximum="$(var.ProductVersion)" IncludeMaximum="no" Property="OLDERVERSIONBEINGUPGRADED" />
+      <UpgradeVersion OnlyDetect="yes" Minimum="$(var.ProductVersion)" Property="NEWERVERSIONDETECTED" IncludeMinimum="no" />
+      <UpgradeVersion OnlyDetect="no" Maximum="$(var.ProductVersion)" Property="OLDERVERSIONBEINGUPGRADED" IncludeMaximum="no" />
     </Upgrade>
     <InstallExecuteSequence>
       <RemoveExistingProducts After="InstallInitialize" />